When I import a video (@ 50fps, 29.97fps or 25fps / HD, SD / AVI, MPEG, WMV, ...) in the Movie Clip Editor, I can not view the movie realtime. I can see the movie frame by frame, or when I press pause, it will jump to the movieframe where paused.

This is a serious problem since I just began learning this and really want to get my hands on it.

I also use Adobe After Effects, Sony Vegas Pro and I haven't encountered a problem like this before.

I also tried to Cache up in the user preferences without succes.

Hope someone can help me and it's not possible that my computer cannot take this kind of operations. Though I might think somewhere it's because the video is played in OpenGL.